All preparations are done just similar to angioplasty. After putting a puncture the wrist (radial / ulnar artery) or at the upper part of the thigh (femoral artery), a sheath is inserted under local anesthesia. During the procedure a patient keeps on breathing normally and can remain silent, pray or discuss with the doctor as per his wish. Melodious music can be played for a music lover. If a patient is very much scared or experiences pain, he can be given a mild sedative or pain relieving (analgesic) injection.
Throughout the procedure the patient’s blood pressure, heart rate, cardiogram and level of oxygen in blood are continuously monitored. This is necessary for the safety of the patient and also for giving him required medicines. If the level of oxygen drops below 90% or if the patient is having chest pain and difficulty in breathing, oxygen is given.
Approximately 2 mm wide guide catheter is taken up to coronary artery through the sheath under fluoroscopic guidance and looking at the TV screen. The condition of coronary artery and block can be seen on the screen by injecting dye. Then a very thin guide wire is passed through the coronary artery and taken up to its distal end beyond the block. A 1.25 to 4.0 mm wide rubber balloon is taken on this guide wire in a closed condition. At the site of block, it is inflated at a very high atmospheric pressure (6-20 atmospheres) with the help of diluted dye. By doing so, cracks are created in the layer of cholesterol, plaque gets compressed and that portion of the artery gets widened.